专家解读视频
基本信息
标准编号： SS 489-2001
出版单位：SG-SPRING SG
标准页数：0
标准简介
This standard specifies requirements and testing methods to assess the fire-resistance of the shutter required to protect openings in walls and to resist passage of fire.\nThis standard applies to fire-resistant vertical roller shutters, lateral shutters, horizontal roller shutters and folding sliding shutters.
